Publications
Table of Contents (TOC)
High intensity photodegradation of lead halide perovskite nanocrystals
Proc. SPIE, 11302, Light-Emitting Devices, Materials, and Applications XXIV; 2020,1130208 doi: 10.1117/12.2544170
Abstract
In this work, we probe the photodegradative behaviour of CsPbBr3 perovskite nanocrystals under illumination intensities in excess of 1 W=cm2. In doing so, we uncover optical behaviours unique to this extreme form of degradation { namely a pronounced period of increasing photoluminescent intensity at the outset of degradation along with a red-shifted emission lobe. We also compare the photochemical lifetimes of CsPbBr3 to the relating organic-inorganic hybrid of FAPbBr3 and show that FAPbBr3 can withstand such high intensities for approximately ten times longer than CsPbBr3. This marks out FAPbBr3 as a potential successor to CsPbBr3 in optoelectronic applications.
For citations:
Shaw, P. J.; Mercier, T. M.; Bailey, C. G.; Kanaras, A. G.; Lagoudakis, P. V.; Charlton, M. D. B.
High intensity photodegradation of lead halide perovskite nanocrystals
Proc. SPIE, 11302, Light-Emitting Devices, Materials, and Applications XXIV; 2020,1130208 doi: 10.1117/12.2544170